8 March 2014 Low-loss and low-crosstalk graded-index polymer optical waveguide circuit fabricated using an imprint method
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Abstract
In this paper, we improve the fabrication procedure of imprint method to obtain low-loss and low-crosstalk GI-core waveguides: particularly focus on eliminating the bridged structure. We experimentally demonstrate that the GI-core waveguides fabricated adopting the modified imprinting method show lower loss and lower crosstalk than SI-core waveguides fabricated using the same material by the same method, even if a slight bridged structure remains. Furthermore, by applying this method to fabricate perpendicularly crossed waveguides, we also demonstrate that GI-core waveguides significantly reduce the loss due to the crossings.
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Yohei Yamashita, Takaaki Ishigure, "Low-loss and low-crosstalk graded-index polymer optical waveguide circuit fabricated using an imprint method", Proc. SPIE 8989, Smart Photonic and Optoelectronic Integrated Circuits XVI, 89890V (8 March 2014); doi: 10.1117/12.2038877; https://doi.org/10.1117/12.2038877
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